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Below are the different PPO networks that GPS utilizes. BE SURE TO REFERENCE YOUR PATIENT’S ID CARD TO DETERMINE THE CORRECT NETWORK. Not all PPO networks are available in all areas. Only the network shown on your patient ID card can be accessed at the in-network rate. If you are unsure of your patient’s PPO network, please call GPS to confirm the network at 888-301-0747. Failure to use in-network providers will greatly reduce the benefits for their claims.

If you have difficulties with any of the following links, please use Google Chrome to search for your in-network providers. Internet Explorer will not always work to search specific sites.


PPO Network

Network Service Area

Toll Free Number


Can only be used in Illinois counties of Peoria, Tazewell, and Woodford.






All 50 States


NOTE: ACCESS TO PHCS OUT OF AREA NETWORK IS ONLY AVAILABLE FOR EMERGENCY TREATMENT WHEN TRAVELING OUTSIDE OF YOUR PRIMARY NETWORK’S AREA. Use of providers in the out-of-area PPO network will still be considered Out-of-Network and paid at a reduced benefit level unless you meet the requirements for an Emergency/Travel exception. If you are not sure if you qualify for access to this secondary travel PPO network, please contact us at 888-301-0747.

Out-of-Area Network

Outside of Local PPO Service Areas

Toll Free Number

All 50 States